
STS-134 Endeavour shuttle launch Director Mike Leinbach announced that the launched will be delayed at least 72 hours. NASA Ames had planned to host a launch viewing party and had doors open at 10 a.m. The news about Endeavour's delay became official at 10:14 a.m. today.
Endeavour, scheduled to launch at 12:47 p.m., was postponed due to an issue that arose in today’s launch scrub. During countdown, "engineers detected a failure in one of two heater circuits associated with Auxiliary Power Unit (APU) 1."
Engineers were unable to activate the heater.
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The launch team will meet today to refine their troubleshooting plan and NASA will host a news conference at 4 p.m. to discuss today’s scrub and the plan.
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